MK (E3) 07/2009
page 56/70
Fault description
Possible fault cause
Required measures
Refrigerating performance
Ambient temperature > 25°C
/
77°F
Select cooler place of installation.
Compressor not switched on.
Electro-valves defective.
No or too low refrigerating per-
formance.
No or not enough refrigerant.
Contact BINDER service.
Condensation
Condensation at the samples.
Heating-up phase without
bedew protection.
Use the bedew protection (chap.
10).
Condensation or icing at the si-
des of the inner chamber.
Set-point for a long time below
ambient temperature, icing in
the preheating chamber.
Defrost the unit.
Controller
No entries to controller keypad
possible. Notification “KEY
LOCK” is displayed
Keyboard locking (option)
activated.
Unlock keyboard locking (chap.
14.4).
No access to menu “User set-
tings”“.
User code forgotten.
Contact BINDER service.
Wrong temperature alarms, dis-
turbance of temperature accuracy
Temperature unit changed to
°F.
Set temperature unit to °C (chap.
6.4).
Chart recorder function: meas-
ured-value memory cleared, in-
formation loss.
New setting of storage rate.
Change the storage rate ONLY if the
previously registered data are no
more required (chap. 7).
Controller does not attain set-
points entered in Manual Mode.
Button EXIT or AUTOMATIC
has been hit: Unit is in Idle
Mode.
Change to Manual Mode (chap. 8).
Controller does not attain pro-
gram set-points.
Button EXIT or AUTOMATIC
has been hit: Unit is in Idle
Mode.
Start the program again (chap. 9.7).
Program duration longer than
programmed.
Tolerances have been pro-
grammed.
For rapid transition phases, do NOT
program tolerance limits in order to
permit maximum heating, speed.
Program stops one section too
early.
Program line is incomplete.
When programming, define the end
value of the desired cycle by adding
an additional section with a section
time of at least one second.
RESET button does not cancel
the notifying or alarm indication.
Cause of disturbance not re-
moved correctly.
Remove cause of disturbance. If the
RESET button still does not cancel
the indication, contact BINDER ser-
vice.
Controller display too dark.
Contrast set too low.
Increase display contrast (chap.
6.3).
Ramp temperature transitions are
only realized as steps.
When using the Program Edi-
tor of the software APT-
COM™ 3 DataControlSystem,
the setting “step” has been
selected.
Select setting „ramp“ in the Program
Editor of the software APT-COM™ 3
DataControlSystem and transfer a
program to the chamber controller.
Sensor rupture between sen-
sor and controller or Pt 100
sensor defective.
Short-circuit.
Contact BINDER service.
Display flashing:
1999 or -1999 or 9999.
Initialization problem due to
switching on the chamber too
early.
Observe a delay time of about 30s
between switching Off and On again
the chamber.
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